73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
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#ifndef CGROUPHELPER_H
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#define CGROUPHELPER_H
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#include <QString>
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#include <QtDBus/QDBusInterface>
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#include <memory>
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#include <functional>
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class CgroupHelper
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{
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private:
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/**
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* @brief getUserPathV2 获取cgroup分组下的用户服务分组绝对路径
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* @param groupPath: 手动调用时传入cgroup根路径"/sys/fs/cgroup"
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* @return user@xxx.service的绝对路径，xxx为用户uid
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*/
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static QString getUserPathV2(QString groupPath);
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/**
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* @brief getPath 获取自定义cgroup分组的相对路径
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* @return 自定义cgroup分组的相对路径
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*/
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static QString getPath();
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/**
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* @brief getCgroupVerson 获取cgroup的版本，与内核版本有关
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* @return cgroup版本，1：cgroupV1 2：cgroupV2 -1:获取版本错误
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*/
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static int getCgroupVerson();
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/**
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* @brief createProcessGroup 创建自定义cgroup分组
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* @return 自定义cgroup分组的相对路径
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*/
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static bool createProcessGroup(QDBusInterface *interface);
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/**
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* @brief moveProcessToGroup 将进程pid添加到指定cgroup分组下
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* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
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* @return true 成功 false 失败
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*/
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static bool moveProcessToGroup(QDBusInterface *interface);
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/**
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* @brief setProcessGroupCPULimit 根据cgroup版本设置CPU管控
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* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
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* @return true 成功 false 失败
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*/
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static bool setProcessGroupCPULimit(QDBusInterface *interface);
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/**
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* @brief addProcessManagerWhiteList 将进程ID添加到kylin-process-manager的白名单中
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* 防止被kylin-procsss-manager管控而产生冲突
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* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
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* @return true 成功 false 失败
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*/
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static bool addProcessManagerWhiteList();
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/**
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* @brief setProcessGroupCPULimitV2 cgroupV2版本限制进程的CPU占用
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* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
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* @return true 成功 false 失败
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*/
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static bool setProcessGroupCPULimitV2(QDBusInterface *interface);
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/**
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* @brief setProcessGroupCPULimitV1 cgroupV1版本限制进程的CPU占用
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* @param interface: 用于调用kylin-ProcessManagerDaemon的DBus接口
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* @return true 成功 false 失败
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*/
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static bool setProcessGroupCPULimitV1(QDBusInterface *interface);
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//用于调用kylin-ProcessManagerDaemon的DBus接口的智能指针
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using CgroupUniquePtr = std::unique_ptr<QDBusInterface, std::function<void(QDBusInterface *)>>;
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public:
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/**
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* @brief setServiceCpuLimit 对外接口，为ukui-search-service设置CPU管控
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* @return true 成功 false 失败
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*/
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static bool setServiceCpuLimit();
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};
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#endif // CGROUPHELPER_H
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